What exactly does the reset bag do in super training in x and y?

Question

Let's say that someone got a level 100 shiny metacross from a trade with all of its evs maxed out and it's not the way I want it. Can you use a reset bag to completely get rid of its evs as if it never had any?

Answer 1

Yep, the rest bag will reset all EVs of 1 Pokemon to 0.

It'll also tell you where the EVs were, so if you didn't know what that Metagross had, you can save just before you use the bag, and if it's already EV trained to what you want it to be, you can just close the game & keep its EVs.

Comments

So it would be as if it got rare candied to level 100. Is that right?

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Yep that's right.

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Thanks so much!

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"The rest bag" what? Do you mean Reset Bag? :3

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It's for super training. You know what that is right?

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Oh yea I meant reset not rest. I still make typos regardless of how slow I type. x(

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Take not that the Ev's will go to 0, but not base stats.

Super Training screen -

Dark Green is base stats
Yellow is EV stats (which will leave a slight outline around the base stat, but is actually completely reset)

Answer 2

Yes, that's exactly what the reset bag is for.
Source: My own Reset bag